为什么需要尺寸公差？
尺寸公差标注是绘制机械图的一项重要内容。
It is essential to mark common difference measurement in a machine drawing.
所有的尺寸和公差都适用于单品状态下。
All dimensions and tolerances apply in a free state condition.
具有紧密公差的尺寸表示该零件必须恰当地与某些其它零件配合。
Dimensions given close tolerances mean that the part must fit properly with some other part.
尺寸和公差仅仅适用在所设计的层面。
Dimensions and tolerances apply only at the drawing level where they are specified.
在尺寸及公差设计中，该方法简单、易行，而且可以获得高的计算精度。
The method is easy to use in dimension and tolerance design and has high accuracy.
另外的指南是对特定尺寸赋予的公差水平。
Another guide would be the level of tolerance assigned to a specific dimension.
繁体中文标题：热轧钢窄带材。尺寸和外形公差；
English Name:Hot-rolled narrow steel strip - Tolerances on dimensions and shape;
成品物品尺寸(含公差)在尺码固定释放后给出。
Final body dimensions (tolerance included) will be given after release of size set.
成品物品尺寸(含公差)在尺码固定释放后给出。
Final body dimensions (tolerance included) will be given after release of size set.
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